CM
BLDR icon

CastleKnight Management’s Builders FirstSource BLDR Stock Holding History

CastleKnight Management’s Portfolio BLDR Stock Details BLDR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$8.95M Buy
+100,000
New +$7.99M 0.12% 122
2025
Q2 		– Sell
-10,000
Closed -$1.25M – 437
2025
Q1 		$1.25M Buy
+10,000
New +$1.45M 0.05% 198

Other funds holding BLDR

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
Pictet Asset Management
Pictet Asset Management Carouge, Switzerland $105B AUM 38.07% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

CastleKnight Management's BLDR Position: Q2 2026 in Review

CastleKnight Management opened a new position in Builders FirstSource (BLDR) in Q2 2026: 72,800 shares worth $6.51M. The stake represents 0.09% of the portfolio and ranks #164 among its holdings. This is a return to the name: CastleKnight Management previously reported a position in BLDR as recently as Q3 2025.

CastleKnight Management first reported a position in BLDR in Q1 2022 and has held it in 5 quarters since. 671 funds tracked by Wall St. Rank hold BLDR as of Q2 2026.

  • CastleKnight Management held 72,800 shares of Builders FirstSource worth $6.51M as of Q2 2026.
  • Builders FirstSource was a new CastleKnight Management position in Q2 2026.
  • Builders FirstSource made up 0.09% of CastleKnight Management's portfolio in Q2 2026, its #164 holding.
  • CastleKnight Management first reported a position in Builders FirstSource in Q1 2022 and has held it in 5 quarters since.
  • 671 funds tracked by Wall St. Rank held Builders FirstSource as of Q2 2026.

Based on CastleKnight Management's 13F filing for Q2 2026, filed 14 Aug 2026.